8 Amazing Holes!These holes are not only amazing, but some of them are really terrifying - especially#8! The sheer scale of these holes reminds you of just how tiny you are.1. Kimberley Big Hole - South AfricaApparently the largest ever hand-dug excavation in the world,this 1097 meter deep mine yielded over 3 tons of diamondsbefore being closed in 1914.2. Glory Hole - Monticello Dam, California

A glory hole is used when a dam is at full capacity and water needs to be drained from the reservoirThis is the 'Glory Hole' at Monticello dam, and it's the largest in the world of this type of spillway, its size enabling it to consume 14,400 cubic feet of water every second.3. Bingham Canyon Mine, UtahThis is supposedly the largest man-made excavation on earth. Extraction began in 1863 and still continues today, the pit increasing in size constantly. In its current state the hole is ¾ miles deep and 2.5 miles wide.

4. Great Blue Hole , BelizeThis incredible geographical phenomenon known as ablue hole is situated 60 miles off the mainland of Belize .There are numerous blue holes around the world,but none as stunning as this one.5. Mirny Diamond Mine , SerbiaI'm pretty sure most people have seen this one.It's an absolute beast and holds the title of largestopen diamond mines in the world. At 525 metersdeep, with a top diameter of 1200 meters, there'seven a no-fly zone above the hole due to a fewhelicopters having been sucked in.

6. Diavik Mine, CanadaThe mine is so huge and the area so remote that it hasits own airport with a runway large enough to accommodate a Boeing 737.It looks equally cool when the surrounding water is frozen.

7.

Sinkhole in GuatemalaThese photos are of a sinkhole that occurredearly this year in Guatemala .. The hole swalloweda dozen homes and killed at least 3 people.And the really terrifying one?#8